Page 70 - كتاب تمريض نسا الاكتروني

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Component of placenta:

-The placenta functions as a feto-maternal organ with two components:

-The fetal placenta (Chorion frondosum), which develops from the same blastocyst that

forms the fetus

-The maternal placenta (Decidua basalis), which develops from the maternal uterine

tissue.

Chorion Frondosum

-is that part of the chorion which adjacent to the decidua basalis of the endometrium of

pregnancy, whose tertiary villi increase in number, size and branching.
-is the base from which the chorionic villi are projecting into the decidua basalis of the

uterus

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